Trailer brake controller



FIG. 1 is a perspective view of a trailer brake controller, showing our new design.

FIG. 2 is a front elevation thereof;

FIG. 3 is a rear elevation thereof;

FIG. 4 is a first side elevation thereof;

FIG. 5 is a second side elevation thereof;

FIG. 6 is a top plan elevation view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken line portions of the figure drawings are included to show unclaimed subject matter only and form no part of the claimed design. 

The ornamental design for a trailer brake controller, as shown and described. 